Cabletron Systems 2E43-51R manual Troubleshooting Checklist

Chapter 4: Troubleshooting

4.3TROUBLESHOOTING CHECKLIST

If the 2E43-51 is not working properly, refer to Table 4-4for a checklist of possible problems, causes, and recommended actions to resolve the problem.

Table 4-4 Troubleshooting Checklist

Problem	Possible Cause	Recommended Action
All LEDs are OFF.	Loss of power.	Check for proper connection
		of the power cable and its
		access to a live outlet.
	Installed improperly.	Check the installation.
No Local	Autobaud is enabled.	Press ENTER (RETURN)
Management		(may take up to four times).
Password screen.
	Terminal setup is not	Refer to Chapter 5 for proper
	correct.	setup procedures.
	Improper console cable	Refer to Appendix A for
	used.	proper console port pinouts.
Cannot contact the	Using incorrect	Refer to Chapter 5
2E43-51 from	Community Name.	for Community Name setup.
in-band
	The 2E43-51 does not	Refer to Chapter 5 for IP
management.
	have an IP address	address assignment
	assigned.	procedure.
	Port is disabled.	Enable port.
	No link to device.	Check link to device.
Port(s) goes into	The 2E43-51 detected a	1. Review network design
standby for no	loop condition.	and delete unnecessary
apparent reason.		loops.
		2. Call the Cabletron
		Systems Global Call
		Center if the problem
		continues.
User parameters (IP	Mode switch (7), NVRAM	1. Reenter the lost
address, Device and	Reset, was changed	parameters as necessary.
Module name, etc.)	sometime before either	2. Call the Cabletron
were lost when the	cycling power or	Systems Global Call
2E43-51 power was	pressing the RESET	Center if the problem
cycled or the front	button causing the	continues.
panel RESET button	user-entered parameters
was pressed.	to reset to factory default
	settings.

4-6 2E43-51/2E43-51R User’s Guide